ocarina: Move tab page content into a table

This should make it easier to add or remove headers and footers so that
I can share one widget between all pages.

include/ocarina/page.h

@@ -8,10 +8,15 @@ class Page
 	private:
 		GtkWidget *table;
 		void add_content(GtkWidget *);
+		void add_footer(GtkWidget *);
 
 	public:
 		Page(GtkWidget *);
 		~Page();
+
+		GtkWidget *get_page();
+		void hide();
+		void show();
 };
 
 #endif /* OCARINA_PAGE_H */

ocarina/body/page.cpp

@@ -1,10 +1,17 @@
 
 #include <ocarina/page.h>
+#include <ocarina/footer.h>
+
+#include <libsaria/print.h>
+
+GtkAttachOptions GROW;
+GtkAttachOptions SHRINK;
 
 Page::Page(GtkWidget *content)
 {
 	table = gtk_table_new(3, 1, FALSE);
 	add_content(content);
+	gtk_widget_show(table);
 }
 
 Page::~Page()
@@ -13,5 +20,23 @@ Page::~Page()
 
 void Page::add_content(GtkWidget *content)
 {
-	gtk_table_attach_defaults(GTK_TABLE(table), content, 0, 1, 1, 2);
+	gtk_table_attach_defaults(GTK_TABLE(table), content, 0, 1, 0, 1);
+}
+
+void Page::add_footer(GtkWidget *footer)
+{
+	gtk_table_attach(GTK_TABLE(table), footer, 0, 1, 2, 3, GROW, SHRINK, 0, 0);
+}
+
+GtkWidget *Page::get_page()
+{
+	return table;
+}
+
+void Page::hide()
+{
+}
+
+void Page::show()
+{
 }

ocarina/body/tabs.cpp

@@ -1,11 +1,32 @@
 
 #include <ocarina/gtk.h>
+#include <ocarina/page.h>
+#include <libsaria/print.h>
+
+#include <vector>
+using namespace std;
 
 static GtkWidget *tabs = NULL;
+static vector<Page> pages;
+
+static int cur_page()
+{
+	return gtk_notebook_get_current_page(GTK_NOTEBOOK(tabs));
+}
+
+static void switch_page(GtkWidget *notebook, GtkWidget *page, int pagenum)
+{
+	int cur = cur_page();
+	if (cur != -1)
+		pages[cur].hide();
+	if (pagenum != -1)
+		pages[pagenum].show();
+}
 
 static void make_tabs()
 {
 	tabs = gtk_notebook_new();
+	GTK_CONNECT(tabs, "switch-page", switch_page, NULL);
 	gtk_notebook_set_tab_pos(GTK_NOTEBOOK(tabs), GTK_POS_LEFT);
 	gtk_widget_show(tabs);
 }
@@ -19,12 +40,14 @@ GtkWidget *get_tabs()
 
 void add_page(GtkWidget *label, GtkWidget *content, bool fill)
 {
-	gtk_notebook_append_page(GTK_NOTEBOOK(tabs), content, label);
+	Page page(content);
+	gtk_notebook_append_page(GTK_NOTEBOOK(tabs), page.get_page(), label);
 	if (fill == true) {
 		gtk_notebook_set_tab_label_packing(GTK_NOTEBOOK(tabs),
-						   content,
+						   page.get_page(),
 						   TRUE,
 						   TRUE,
 						   GTK_PACK_START);
 	}
+	pages.push_back(page);
 };